#6440AD
Closest named color: Rebecca Purple (#663399). oklch(47.2% 0.166 294.4), rgb(100, 64, 173).
Aa
White text reads best on this color (7.29:1).
About this color
#6440AD is a medium-dark, vivid purple. In OKLCH its lightness is 47%, its chroma 0.166 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.041 away. White text reads best on it, at 7.29:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.166) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.87:1 |
| White text | 7.29:1 |
Values
| HEX | #6440AD |
| RGB | rgb(100, 64, 173) |
| HSL | hsl(260, 46%, 46%) |
| OKLCH | oklch(47.2% 0.166 294.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #6440AD | 7.29:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #6440AD | 2.87:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #6440AD text on white | 7.29:1 | AAA | Lc 84.9 | Fine for body text |
| #6440AD text on black | 2.87:1 | Fails | Lc -17.1 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 700.
-
Step 50
50
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EAE7F8
oklch(93.5% 0.023 294.1)
-
Step 200
200
#DAD4F4
oklch(88.5% 0.044 294.1)
-
Step 300
300
#C3B7F0
oklch(80.9% 0.08 294.2)
-
Step 400
400
#A690E8
oklch(70.8% 0.127 294.4)
-
Step 500
500
#9171E1
oklch(63% 0.164 294.4)
-
Step 600
600
#7C57CF
oklch(55.6% 0.178 294.1)
-
Step 700
700 (this color)
#6440AD
oklch(47.2% 0.166 294.4)
-
Step 800
800
#563A91
oklch(42.7% 0.138 294.7)
-
Step 900
900
#463374
oklch(37.7% 0.107 294.1)
-
Step 950
950
#291E44
oklch(26.9% 0.069 294.7)
#6440AD with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #0057B0 | 0.107 |
| Deuteranopia (no green cones) | #0055AB | 0.108 |
| Tritanopia (no blue cones) | #515970 | 0.132 |
| Achromatopsia (no color) | #565656 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6440AD
#6440AD
oklch(47.2% 0.166 294.4)
- #5B6100
#5B6100
oklch(47.1% 0.106 113.9)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #6440AD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.041
- Bluey Purple #6241C7 ΔE 0.041
- Blue With A Hint Of Purple #533CC6 ΔE 0.052
- Blurple #5539CC ΔE 0.059
- Blueberry #464196 ΔE 0.063
- Iris #6258C4 ΔE 0.063
- Dark Slate Blue #483D8B ΔE 0.074
- Grape #7209B7 ΔE 0.075
Use #6440AD in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.